:root{
  --bg0:#05060f;
  --card:rgba(15,15,30,.50);
  --stroke:rgba(79,140,255,.22);
  --txt:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.70);
  --muted2:rgba(255,255,255,.55);
  --primary:#4f8cff;
  --accent:#ff4d8d;
  --cyan:#22d3ee;
  --shadow:0 18px 55px rgba(0,0,0,.50);
  --radius:26px;
  --maxw:1180px;

  --t:.28s;
  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg0);
  color:var(--txt);
  overflow-x:hidden;
  line-height:1.55;
}

.bg{
  position:fixed;
  inset:0;
  z-index:-10;
  pointer-events:none;
}
.bg::before{
  content:"";
  position:absolute;
  inset:-30%;
  background:
    radial-gradient(950px 720px at 15% 20%, rgba(79,140,255,.30), transparent 60%),
    radial-gradient(920px 700px at 85% 25%, rgba(255,77,141,.22), transparent 56%),
    radial-gradient(900px 700px at 80% 80%, rgba(34,211,238,.18), transparent 60%),
    radial-gradient(950px 720px at 25% 85%, rgba(32,227,178,.20), transparent 58%);
  filter:blur(90px);
  animation:floaty 34s ease-in-out infinite;
  will-change:transform;
}
.bg::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  opacity:1;
}
@keyframes floaty{
  0%,100%{transform:translate(0,0) rotate(0deg)}
  40%{transform:translate(4%,-4%) rotate(115deg)}
  70%{transform:translate(-3%,4%) rotate(230deg)}
}

.container{width:min(var(--maxw),calc(100% - 44px));margin:0 auto}
section{padding:110px 0;position:relative}

.section-head{text-align:center;margin-bottom:44px}
.title{
  font-family:"Space Grotesk",Inter;
  font-weight:800;
  letter-spacing:-.02em;
  font-size:clamp(2.15rem,4vw,3.6rem);
  background:linear-gradient(135deg,#fff 0%, rgba(255,255,255,.90) 28%, var(--primary) 76%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.subtitle{margin-top:10px;color:var(--muted2);font-size:1.07rem}

a,button{outline:none}
a:focus-visible,button:focus-visible{
  box-shadow:0 0 0 4px rgba(79,140,255,.28);
  border-radius:12px;
}

.scroll-progress{
  position:fixed;
  top:0;left:0;
  width:0%;
  height:3.5px;
  background:linear-gradient(90deg,var(--primary),var(--accent),var(--cyan));
  z-index:1300;
  box-shadow:0 0 24px rgba(79,140,255,.40);
  transition:width .12s linear;
}

nav{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  z-index:1400;
  width:calc(100vw - 28px);
  max-width:980px;
}
.nav{
  background:rgba(15,15,30,.68);
  backdrop-filter:blur(32px) saturate(180%);
  border:1px solid rgba(99,102,241,.20);
  border-radius:999px;
  padding:12px 16px;
  box-shadow:0 10px 34px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  gap:16px;
  transition:all var(--t) var(--ease);
}
.nav.scrolled{
  background:rgba(15,15,30,.78);
  border-color:rgba(79,140,255,.28);
  box-shadow:0 14px 46px rgba(0,0,0,.52), inset 0 1px 0 rgba(255,255,255,.08);
}
.brand{
  width:48px;height:48px;
  display:grid;
  place-items:center;
  border-radius:999px;
  font-family:"Space Grotesk";
  font-weight:900;
  font-size:.96rem;
  letter-spacing:1px;
  background:linear-gradient(135deg, rgba(79,140,255,.30), rgba(255,77,141,.18));
  border:1px solid rgba(79,140,255,.28);
  user-select:none;
  transition:transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
  box-shadow:0 10px 26px rgba(79,140,255,.16);
}
.brand:hover{
  transform:translateY(-2px) scale(1.04);
  box-shadow:0 14px 34px rgba(79,140,255,.24);
}
.navlinks{
  display:flex;
  align-items:center;
  gap:10px;
  flex:1;
  justify-content:center;
}
.nav a{
  text-decoration:none;
  color:rgba(255,255,255,.76);
  font-weight:700;
  font-size:.98rem;
  padding:10px 16px;
  border-radius:999px;
  transition:all var(--t) var(--ease);
  position:relative;
  white-space:nowrap;
}
.nav a:hover{
  color:#fff;
  background:rgba(79,140,255,.12);
  transform:translateY(-2px);
}
.nav a.active{
  color:#fff;
  background:rgba(79,140,255,.15);
}
.nav a.active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;
  bottom:7px;
  height:3px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 26px rgba(79,140,255,.42);
}

.hero{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding-top:92px;
}
.hero-inner{text-align:center;padding:44px 0 10px}
.kaggle-badges{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.pill{
  padding:10px 16px;
  border-radius:999px;
  background:rgba(79,140,255,.09);
  border:1px solid rgba(79,140,255,.24);
  color:rgba(255,255,255,.88);
  font-weight:700;
  font-size:.99rem;
  transition:all var(--t) var(--ease);
  backdrop-filter:blur(10px);
  box-shadow:0 8px 22px rgba(0,0,0,.22);
}
.pill:hover{
  background:rgba(79,140,255,.16);
  border-color:rgba(79,140,255,.36);
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(79,140,255,.14);
}
.name{
  font-family:"Space Grotesk";
  font-weight:900;
  letter-spacing:-.05em;
  font-size:clamp(3.0rem,6.4vw,5.4rem);
  margin:6px 0 10px;
  background:linear-gradient(135deg,#fff 0%, var(--primary) 44%, var(--accent) 88%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  background-size:200% 200%;
  animation:nameGradient 8s ease-in-out infinite;
  text-shadow:0 0 26px rgba(79,140,255,.10);
}
@keyframes nameGradient{
  0%,100%{background-position:0% 50%;filter:brightness(1.0)}
  50%{background-position:100% 50%;filter:brightness(1.05)}
}
.role{color:rgba(255,255,255,.78);font-size:1.18rem;font-weight:650;margin-bottom:10px;letter-spacing:.4px}
.tagline{color:rgba(255,255,255,.74);font-size:1.10rem;max-width:900px;margin:0 auto 28px;line-height:1.85}

.cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:16px}
.btn{
  text-decoration:none;
  padding:13px 26px;
  border-radius:999px;
  font-weight:800;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  color:rgba(255,255,255,.94);
  transition:all var(--t) var(--ease);
  position:relative;
  overflow:hidden;
  box-shadow:0 10px 26px rgba(0,0,0,.24);
}
.btn::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,transparent, rgba(255,255,255,.10), transparent);
  transform:translateX(-100%);
  transition:transform .9s var(--ease);
  opacity:.85;
}
.btn:hover{
  transform:translateY(-3px);
  background:rgba(79,140,255,.14);
  border-color:rgba(79,140,255,.28);
  box-shadow:0 18px 44px rgba(79,140,255,.18);
}
.btn:hover::before{transform:translateX(100%)}
.btn.primary{
  background:linear-gradient(135deg, rgba(79,140,255,.98), rgba(79,140,255,.96));
  border-color:rgba(79,140,255,.42);
  box-shadow:0 22px 62px rgba(79,140,255,.36);
}
.btn.primary:hover{
  background:linear-gradient(135deg, rgba(79,140,255,1), rgba(255,77,141,.98));
  box-shadow:0 28px 78px rgba(79,140,255,.48);
}

.card{
  background:var(--card);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(28px) saturate(180%);
  transition:transform var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.card:hover{
  border-color:rgba(79,140,255,.30);
  background:rgba(15,15,30,.60);
  box-shadow:var(--shadow), 0 0 0 1px rgba(79,140,255,.16), 0 0 42px rgba(79,140,255,.10);
}

#about .container{max-width:980px}
.about-wrap{display:grid;grid-template-columns:1fr;gap:20px;max-width:720px;margin:26px auto 0}
.about-card{padding:30px}
.about-card p{margin:0 0 16px;color:rgba(255,255,255,.74);line-height:1.95;font-size:1.08rem}
.about-card p:last-child{margin-bottom:0}

.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:38px}
.feature{padding:26px;position:relative;overflow:hidden}
.feature h3{margin-top:14px;font-size:1.30rem;font-weight:900;color:rgba(255,255,255,.95)}
.feature p{margin-top:12px;color:rgba(255,255,255,.72);line-height:1.85;font-size:1.02rem}
.feature .i{font-size:2.05rem}

#what .feature, #what .feature *{transition:none !important}

.filters{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin:20px 0 32px;
}
.fbtn{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:rgba(255,255,255,.78);
  padding:11px 16px;
  border-radius:999px;
  cursor:pointer;
  font-weight:850;
  transition:all var(--t) var(--ease);
}
.fbtn:hover{
  transform:translateY(-2px);
  background:rgba(79,140,255,.12);
  border-color:rgba(79,140,255,.25);
  color:#fff;
  box-shadow:0 14px 34px rgba(79,140,255,.14);
}
.fbtn.active{
  background:linear-gradient(135deg, rgba(79,140,255,.98), rgba(79,140,255,.94));
  border-color:rgba(79,140,255,.40);
  color:#fff;
  box-shadow:0 18px 52px rgba(79,140,255,.28);
}

.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.p-card{overflow:hidden;cursor:pointer;position:relative}
.p-card:hover{
  transform:translateY(-9px);
  border-color:rgba(79,140,255,.36);
  box-shadow:0 34px 96px rgba(79,140,255,.16);
}

.p-top{
  position:relative;
  overflow:hidden;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg, rgba(79,140,255,.18), rgba(255,77,141,.12));
  border-bottom:1px solid rgba(255,255,255,.08);
  aspect-ratio:16/9;
}
@supports not (aspect-ratio: 16/9){
  .p-top{height:160px}
}
.p-top.is-icon{font-size:2.35rem}
.p-img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center top;
  display:block;
}
.p-body{padding:20px}
.ptype{
  display:inline-block;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(79,140,255,.12);
  border:1px solid rgba(79,140,255,.22);
  color:rgba(255,255,255,.85);
  font-weight:850;
  font-size:.75rem;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.p-body h3{margin-top:14px;font-size:1.18rem;font-weight:900}
.p-body p{margin-top:12px;color:rgba(255,255,255,.72);line-height:1.75}
.plink{
  margin-top:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  text-decoration:none;
  font-weight:900;
  transition:gap var(--t) var(--ease);
}
.plink:hover{gap:12px}

.tech-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:38px}
.tech{padding:24px}
.tech h3{
  font-size:1.10rem;
  font-weight:900;
  color:rgba(255,255,255,.96);
  margin-bottom:14px;
  font-family:"Space Grotesk";
  letter-spacing:-.01em;
}
.stack{display:flex;flex-direction:column;gap:10px}
.item{
  padding:12px 14px;
  border-radius:14px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  color:rgba(255,255,255,.88);
  font-weight:700;
  font-size:1.00rem;
  transition:all var(--t) var(--ease);
}
.item:hover{
  transform:translateX(6px);
  background:rgba(79,140,255,.14);
  border-color:rgba(79,140,255,.28);
  color:#fff;
  box-shadow:0 14px 34px rgba(79,140,255,.14);
}

.contact-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  margin-top:34px;
  max-width:980px;
  margin-left:auto;
  margin-right:auto;
}
.contact{
  padding:18px 16px;
  text-decoration:none;
  text-align:center;
  display:grid;
  place-items:center;
  gap:6px;
  border-radius:22px;
  min-height:92px;
  transition:all .30s var(--ease);
}
.contact h4{font-weight:850;font-size:1.02rem;letter-spacing:.2px}
.contact p{color:rgba(255,255,255,.68);font-size:1.0rem}
.contact:hover{
  transform:translateY(-4px);
  background:linear-gradient(135deg, rgba(79,140,255,.16), rgba(255,77,141,.10));
  border-color:rgba(79,140,255,.30);
  box-shadow:0 24px 65px rgba(79,140,255,.16);
}
.contact:focus-visible{
  outline:2px solid rgba(79,140,255,.55);
  outline-offset:4px;
}

footer{
  padding:44px 0 52px;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(8,8,16,.78);
}
.foot{text-align:center}
.copy{margin:0;color:rgba(255,255,255,.80);font-weight:650}
.xlink{
  margin-top:18px;
  display:inline-block;
  color:rgba(255,255,255,.62);
  text-decoration:none;
  font-weight:800;
  letter-spacing:.14em;
  transition:all .30s var(--ease);
}
.xlink:hover{color:rgba(255,255,255,.92);transform:translateY(-1px)}
.xlink:focus-visible{
  outline:2px solid rgba(79,140,255,.55);
  outline-offset:4px;
  border-radius:10px;
}

.topbtn{
  position:fixed;
  right:20px;
  bottom:20px;
  width:56px;
  height:56px;
  border-radius:16px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg, rgba(79,140,255,.98), rgba(79,140,255,.94));
  border:1px solid rgba(79,140,255,.44);
  box-shadow:0 24px 66px rgba(79,140,255,.30);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:all var(--t) var(--ease);
  z-index:1300;
  user-select:none;
  font-weight:900;
  font-size:1.2rem;
}
.topbtn:hover{transform:translateY(0) scale(1.08)}
.topbtn.show{opacity:1;visibility:visible;transform:translateY(0)}

.fade{opacity:0;transform:translateY(18px);transition:opacity .75s var(--ease), transform .75s var(--ease)}
.fade.in{opacity:1;transform:translateY(0)}
#what .fade, #what .fade.in{opacity:1 !important;transform:none !important;transition:none !important}

@media (max-width: 1100px){
  .grid3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tech-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 860px){
  .grid2{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  section{padding:92px 0}
  .role{font-size:1.08rem}
  .tagline{font-size:1.05rem}
}
@media (max-width: 720px){
  .navlinks{display:none}
  .nav{justify-content:space-between}
  .hero{padding-top:102px}
  section{padding:84px 0}
}
@media (max-width: 520px){
  .contact-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:1fr}
  section{padding:82px 0}
  .title{font-size:clamp(1.9rem,3.7vw,2.9rem)}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}